The pencil draws curves, the line tool draws straight runs and snaps to the ends of other lines. Every line is solid from both sides. On a phone, one finger draws and two fingers move and zoom.
Press Ride. The rider can’t steer, push or jump — the track is all they’ve got. Stop, change a line, ride again. Last run’s path stays on screen as a dotted line.
Land too hard, clip your head, get thrown off balance or touch the hazard stripes and the rider comes off. The board carries on without them.
Track is plain ground. Boost shoves the rider the way you drew it — follow the chevrons. Spring throws them off it, every time. Ghost is scenery (sandbox only).
Three per level: reach the flag, collect every pip on the way, and use less ink than par. They don’t have to be the same run.
Space ride / stop · P pencil · L line · E eraser · H hand · 1–4 line type · Z undo · ShiftZ redo · F fit · ←→ step frames. Hold Shift with the line tool to snap angles; hold Space and drag, or use the wheel, to move around.